Results 81 to 90 of about 684 (200)

Molecularly Engineered Nitrate Double Perovskites with Elevated Ferroelectric Phase Transition Temperature and Large Piezoelectric Response

open access: yesAdvanced Science, EarlyView.
This study reports molecularly engineered nitrate double perovskites based on systematic BI‐site cation substitution. This molecular engineering modulates local BI···NO3 interactions, nitrate connectivity, and collective physical responses, accompanied by structural conversion from mixed corner‐/face‐sharing structures to three‐dimensional corner ...
Le Ye   +12 more
wiley   +1 more source

Antiferroelectric dielectric relaxation processes and the interlayer interaction in antiferroelectric liquid crystals [PDF]

open access: yesApplied Physics Letters, 2008
Antiphase relaxation process of antiferroelectric phase is investigated in binary mixtures of antiferroelectric and ferroelectric liquid crystalline compounds. It is found that the frequency of the antiphase mode ranges from 2to4MHz, being one of the fastest collective processes reported so far.
VIJ, JAGDISH   +3 more
openaire   +3 more sources

Nonequilibrium polarization dynamics in antiferroelectrics [PDF]

open access: yes, 2017
A nonequilibrium statistical domain nucleation model of polarization dynamics in less understood antiferroelectric systems is introduced. Predictions of the model have been successfully tested experimentally using an antiferroelectric Pb0.99Nb0.02[( Zr0 ...
Tan, Xiaoli, Vopson, M.
core  

Synthesis and Properties of High Tilted Antiferroelectric Esters with Partially Fluorinated Alkoxyalkoxy Terminal Chains [PDF]

open access: yes, 2008
Novel chiral esters with partially fluorinated alkoxyalkoxy terminal chains are described. Their phase transition temperatures, enthalpies, and electrooptical properties are reported.
Dziaduszek, J.   +7 more
core   +1 more source

Low‐Field Giant Dielectric Tunability by Polaron‐Mediated Interfacial Polarization in Pulsed‐Laser‐Deposited‐Nanocrystalline/Amorphous Composite BaTiO3 Thin Films

open access: yesAdvanced Electronic Materials, EarlyView.
Comparison of tunability efficiency between vacuum‐deposited PLD‐BTO films grown at Td = 550°C in the present study and representative previous reports. ABSTRACT Electrically tunable dielectric thin films are essential components for next‐generation low‐voltage electronic devices.
Shinya Kondo   +7 more
wiley   +1 more source

Dipole patterns in the structures of some ferroelectrics and antiferroelectrics

open access: yes, 1963
The dipole patterns in the ferroelectric and antiferroelectric structures are drawn according to experimentally determined symmetry changes in the ferroelectrics and antiferroelectrics.
Zheludev, IS
core  

Atomically resolved domain boundary structure in lead zirconate-based antiferroelectrics [PDF]

open access: yes, 2019
Domain boundary (DB) structures are of great importance for understanding the structure-property relationship in many ferroic crystals. Here, we present atomically resolved DB configurations in PbZrO3-based antiferroelectric ceramics.
Tan, Xiaoli   +3 more
core  

NaNbO3-based antiferroelectric multilayer ceramic capacitors for energy storage applications

open access: yes, 2021
Antiferroelectric materials feature electric-field-induced phase transitions followed by a large polarization change characterized by double polarization hysteresis loops. Therefore, antiferroelectrics are engaging for highenergy density and high-power
Koruza, Jurij   +9 more
core   +1 more source

Artificial Intelligence for Fluorite Ferroelectric Materials: From Discovery to Optimization

open access: yesAdvanced Electronic Materials, EarlyView.
Artificial intelligence accelerates the discovery and optimization of HfO2‐based fluorite ferroelectrics by linking synthesis, structure, properties, and device performance. Machine learning, deep‐learning analysis, and AI‐driven atomistic modeling enable predictive design, dopant screening, and closed‐loop optimization toward next‐generation ...
Faizan Ali   +3 more
wiley   +1 more source

Dielectric Anomalies and High-Temperature Dielectric Relaxation Dependence on B-Site Ordering of Li-Substituted Pb(Yb1/2Nb1/2)O3

open access: yesInorganics
B-site ordering of Li-modified Pb0.95Li0.05(Yb1/2Nb1/2)O3 (PLYN) ceramics can be changed by duration during sintering. In this paper, the conventional solid-state reaction method was employed to prepare antiferroelectric perovskite Li-substituted PLYN ...
Kaiyuan Chen   +10 more
doaj   +1 more source

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